(19)
(11) EP 0 980 082 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
27.02.2002 Bulletin 2002/09

(43) Date of publication A2:
16.02.2000 Bulletin 2000/07

(21) Application number: 99115684.5

(22) Date of filing: 09.08.1999
(51) International Patent Classification (IPC)7: H01G 9/20, H01M 6/16, H01M 10/40
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 11.08.1998 JP 23948298
11.08.1998 JP 23948398

(71) Applicant: Fuji Photo Film Co., Ltd.
Kanagawa-ken (JP)

(72) Inventors:
  • Takizawa, Hiroo
    Minami-Ashigara-shi, Kanagawa-ken (JP)
  • Shiratsuchi, Kentaro
    Minami-Ashigara-shi, Kanagawa-ken (JP)

(74) Representative: Solf, Alexander, Dr. 
Patentanwälte Dr. Solf & Zapf Candidplatz 15
81543 München
81543 München (DE)

   


(54) Organic electrolyte for a photo-electrochemical cell


(57) An electrolyte containing a 5- or 6-membered nitrogen-containing aromatic ring compound having a specific structure represented by formula (I) or (I') and a photo-electrochemical cell having the electrolyte. The electrolyte hardly volatilizes and performs an excellent charge transport function to provide a photo-electrochemical cell having excellent photoelectric characteristics and durability. wherein Z represents an atomic group necessary to form a 5-membered aromatic ring cation together with the nitrogen atom and E; E represents an oxygen atom or a sulfur atom; R1 represents an alkyl group or an alkenyl group; R51 represents a hydrogen atom or a substituent; and a represents 1 or 3. wherein Z' represents an atomic group necessary to form a 6-membered aromatic ring cation together with the nitrogen atom; R1' represents an alkyl group or an alkenyl group; and a' represents 1 or 3.









Search report